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// -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8; -*-
/* This file is part of the KDE project
Copyright (C) 2004 Esben Mose Hansen <kde@mosehansen.dk>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <qregexp.h>
#include <qstyle.h>
#include <qpixmap.h>
#include <qimage.h>
#include <kstringhandler.h>
#include <klocale.h>
#include <kdebug.h>
#include "historyitem.h"
#include "popupproxy.h"
#include "history.h"
#include "klipperpopup.h"
PopupProxy::PopupProxy( KlipperPopup* parent, const char* name, int menu_height, int menu_width )
: QObject( parent, name ),
proxy_for_menu( parent ),
spillPointer( parent->history()->youngest() ),
m_menu_height( menu_height ),
m_menu_width( menu_width ),
nextItemNumber( 0 )
{
connect( parent->history(), SIGNAL( changed() ), SLOT( slotHistoryChanged() ) );
}
void PopupProxy::slotHistoryChanged() {
deleteMoreMenus();
}
void PopupProxy::deleteMoreMenus() {
const KPopupMenu* myParent = parent();
if ( myParent != proxy_for_menu ) {
const KPopupMenu* delme = proxy_for_menu;;
proxy_for_menu = static_cast<KPopupMenu*>( proxy_for_menu->parent() );
while ( proxy_for_menu != myParent ) {
delme = proxy_for_menu;
proxy_for_menu = static_cast<KPopupMenu*>( proxy_for_menu->parent() );
}
delete delme;
}
}
int PopupProxy::buildParent( int index, const QRegExp& filter ) {
deleteMoreMenus();
// Start from top of history (again)
spillPointer = parent()->history()->youngest();
nextItemNumber = 0;
if ( filter.isValid() ) {
m_filter = filter;
}
return insertFromSpill( index );
}
KlipperPopup* PopupProxy::parent() {
return static_cast<KlipperPopup*>( QObject::parent() );
}
void PopupProxy::slotAboutToShow() {
insertFromSpill();
}
void PopupProxy::tryInsertItem( HistoryItem const * const item,
int& remainingHeight,
const int index )
{
// Insert item
int id = -1;
QPixmap image( item->image() );
if ( image.isNull() ) {
// Squeeze text strings so that do not take up the entire screen (or more)
QString text( KStringHandler::cPixelSqueeze(item->text().simplifyWhiteSpace(),
proxy_for_menu->fontMetrics(),
m_menu_width).replace( "&", "&&" ) );
id = proxy_for_menu->insertItem( text, -1, index );
} else {
const QSize max_size( m_menu_width,m_menu_height/4 );
if ( image.height() > max_size.height() || image.width() > max_size.width() ) {
image.convertFromImage( image.convertToImage().smoothScale( max_size, QImage::ScaleMin ) );
}
id = proxy_for_menu->insertItem( image, -1, index );
}
// Determine height of a menu item.
Q_ASSERT( id != -1 ); // Be sure that the item was inserted.
QMenuItem* mi = proxy_for_menu->findItem( id );
int fontheight = QFontMetrics( proxy_for_menu->fontMetrics() ).height();
int itemheight = proxy_for_menu->style().sizeFromContents(QStyle::CT_PopupMenuItem,
proxy_for_menu,
QSize( 0, fontheight ),
QStyleOption(mi,10,0) ).height();
// Test if there was enough space
remainingHeight -= itemheight;
History* history = parent()->history();
proxy_for_menu->connectItem( id,
history,
SLOT( slotMoveToTop( int ) ) );
proxy_for_menu->setItemParameter( id, nextItemNumber );
}
int PopupProxy::insertFromSpill( int index ) {
// This menu is going to be filled, so we don't need the aboutToShow()
// signal anymore
disconnect( proxy_for_menu, 0, this, 0 );
// Insert history items into the current proxy_for_menu,
// discarding any that doesn't match the current filter.
// stop when the total number of items equal m_itemsPerMenu;
int count = 0;
int remainingHeight = m_menu_height - proxy_for_menu->sizeHint().height();
// Force at least one item to be inserted.
remainingHeight = QMAX( remainingHeight, 0 );
for ( const HistoryItem* item = spillPointer.current();
item && remainingHeight >= 0;
nextItemNumber++, item = ++spillPointer )
{
if ( m_filter.search( item->text() ) == -1) {
continue;
}
tryInsertItem( item, remainingHeight, index++ );
count++;
}
// If there is more items in the history, insert a new "More..." menu and
// make *this a proxy for that menu ('s content).
if ( spillPointer.current() ) {
KPopupMenu* moreMenu = new KPopupMenu( proxy_for_menu, "a more menu" );
proxy_for_menu->insertItem( i18n( "&More" ), moreMenu, -1, index );
connect( moreMenu, SIGNAL( aboutToShow() ), SLOT( slotAboutToShow() ) );
proxy_for_menu = moreMenu;
}
// Return the number of items inserted.
return count;
}
#include "popupproxy.moc"
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